polyolefin

noun
poly·​ole·​fin | \ ˌpä-lē-ˈō-lə-fən How to pronounce polyolefin (audio) \

Definition of polyolefin

: a polymer of an alkene (such as polyethylene)

First Known Use of polyolefin

1930, in the meaning defined above

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The first known use of polyolefin was in 1930

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